Percutaneous venous catheter

Details Percutaneous venous catheter Percutaneous venous catheter

1987-08-18

1989-09-05

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604175, 604282, A61M 1100

Patent

active

048634263

ABSTRACT:
A percutaneous venous catheter includes a first fluid-pervious segment for implantation in the body and a second extravascular segment composed of a flexible tube surrounded by a vapor-barrier sheath. A cuff marks the boundary between the two segments and a connector fitting is mounted to the free end of the extravascular segment, there being a continuous fluid path between the fitting and the tip. The vapor barrier present in the extravascular segment of the catheter prevents fluid transpiration through the catheter wall that tends to draw fluid along the catheter causing an occluding thrombus formation at the catheter tip.

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patent: 4489722 (1984-12-01), Ferraro et al.
patent: 4668225 (1987-05-01), Russo et al.
patent: 4676782 (1987-06-01), Yamamoto et al.
patent: 4723947 (1988-02-01), Konopka

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